Egg and flour mixer



(No Model.)

' A. DOLL.

EGG AND FLOUR MIXER.

N0. 266,679.. Patezited- 001;. 311.1882.

WITNESSES: f

j W g-M BY I ATTORNEY UNITED STATES PATENT OFFICE.

ARNOLD DOLL, OF CLEVELAND, OHIO.

EGG AND FLOUR MIXER.

SPECIFICATION forming part of Letters Patent No. 266,679, dated October 31, 1882.

(N0 model.)

To all whom it may concern:

Be itknowu that I, ARNOLD DOLL, of Oleveland, in the county of Ouyahoga and State of Ohio,have invented certain new and useful Improvements in Egg and Flour Mixers, of which the following is a specification.

This invention relates to a mixing-machine for the use of bakers and cont'ectioners, whereby eggs, sugar, and flour may be quickly and thoroughly mixed for sponge and other light cakes; and the invention consists of a bakers egg and flour mixer in which a beater of certain improved construction is revolved in a jacketed receptacle or trough, as will appear more fully hereinafter.

In the accompanying drawings, Figure 1 represents a side elevation of my improved egg and flour mixer. Fig. 2 is a plan with cover removed Fig. 3, a vertical transverse section of the same on line 00 m, Fig. 1. Figs. 4 and 5 represent detail side views of the beater used in my machine.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents an oblong receptacle or mixing-trough, which is supported on side standards, A, preferably of cast-iron. The receptacle or trough A is preferably lined with galvanized zinc and arranged with a jacket, A", formed by the double side walls and double rounded bottom. Thejacket A is filled through top openings, (4, either with hot or cold water, according to the ingredients to be mixed, or with steam when large quantities oflight dough have to be mixed. During the mixing operation the trough A is closed by a tightly-fitting cover, B.

At the interior of the trough A is arranged an agitator or beater,O, the longitudinalcenter shaft, b, of which is supported by a collar, 1), at one end in a bearing, [1 of one of the side standards A, while the opposite end is coupled by a square socket, b with a shortdetachable transmitting-shaft, d, which shaft is passed through a journaled opening of the opposite side standard A. The heater 0 is preferably made of cast-iron, with four or more rows of flat radial arms, b the arms being set transversely to the direction of motion, so as to cut with their edges through the material to be the material to be mixed.

mixed. The arms I) of the different rows are so arranged on the shaft that the arms of one row are arranged intermediately between the arms of the adjoining rows, so that each arm cuts a separate and independent path through The beater-arms l) are connected at theirouterends by longitudinal stiffening-rods b which impart rigidity to the entire row of arms. One of the rows of beater-arms is beveled or rounded off at the socket end of the shaft 1) for the purpose of ad mitting the insertion of that end of the beatershat't having the collar b into the bearing Z) of the side standard, A, which could not be done but for this rounding or beveling off.

The beater 0 receives rotary motion for mixing eggs, sugar, flour, or other materials placed in the trough by any suitable gearing applied to the short detachable shaft dor by belt and pulley, according as the mixeris to be worked by hand or power. For machines worked by hand a fly-wheel, f, is placed on the shaft (1, which wheel carries also a pinion, c, at its outer end, said pinion meshing with a gear-wheel,

0, having a hand-crank, 0'. By detaching the shaft (1 and :tly-wheel f the beater may be removed from its hearings in the side walls of. the trough A for cleaning, and also'the mixed dough removed from the trough without difliculty. Ascrew orother plug,g, closes an opening at the bottom of the jacket A for letting out the hot or cold water, while a second plug closes the opening in the side standard, A, when the shaft d is removed.

In revolving the beater the radial arms of 8 the same agitate the materials placed in the trough, while the longitudinal stiffening-rods move closely along the inner walls ofthe trough, so as to take up the materials deposited thereon and return them into the path of the radial 9o beater-arms, whereby the thorough mixing of the eggs, sugar, flour, or other materials is secured in a very short time, and a dough of the required consistency and lightness obtained.

Having thus described myinvention, I claim 5 as new and desire to secure by Letters Patent-- 1. In a bakers egg and flour mixer, the combination ofajacketed mixing-trough, a detachable beater having rows of radial arms connected by longitudinal stiffening-rods at their outer :oo

ends, and means for revolving the beater, substantially as set forth.

2. In a bakers egg and flour mixer, the combination of the jacketed mixing-trough A A 5 A having a shaft-bearing in one side standard and a journaled opening in the opposite side standard, with a detachable beater, 0, composed of a center shaft, 1), having a collar, 1)", at one end, a socket, b at the other end, and rows of radial arms I), connected by longitudinal stiffening-rods b at the outer ends, and a detachable driving-shaft, d, for revolving the beater, said shaft being passed through the journaled opening of the side standard, A, and 15 coupled to the socket end of the beater-shaft,

substantially as specified.

3. In a bakers egg and flour mixer, a beater composed of a center shaft having rows of radial stirrer-arms, connected by longitudinal stiffening-rods at the ends, the arms of one row being arranged to alternate with the arms of the adjoining rows, substantially as specified.

In testimony that I claim the foregoing as my invention I have signed my name in pres-' ence of two subscribing witnesses.

ARNOLD DOLL.

Witnesses:

PAUL GOEPEL, SIDNEY MANN. 

